Unless you are in a rural area, trying to use an 80 MHz channel in 2.4 GHz almost guarantees your radio is going to spend far more time waiting to transmit beca

Unless you are in a rural area, trying to use an 80 MHz channel in 2.4 GHz almost guarantees your radio is going to spend far more time waiting to transmit because of interference than doing anything useful. Finding the least congested 20 MHz channel is likely to give higher overall throughput.